Unit 1 Curiosity, Wonder and Questioning COPY Flashcards
apparatus
specialised equipment needed for a particular purpose.
Bunsen burner
a small adjustable gas burner used in laboratories as a source of heat
Celsius
a scale of temperature on which water freezes at 0° and boils at 100°.
has the symbol (c)
Conclusion
a judgement or decision reached by reasoning. The end of a scientific report.
Controlled Variable
all other variables in the experiment which are kept the same (ie controlled) on purpose other than the independant and dependant variable.
pictured: In this case
the size of the soft drink bottle (all the same) is controlled.
Variable
is anything that can change or something that can affect the results of an experiment.
Pictured: are all variables
- the different types of soft drinks
- the amount of menthos used
- the temperature of the soft drink
- The volume of soft drink
Independant variable
The factor or variable we c_hange intentionally_ to test how it affects the experiment
Pictured: the types of soft drink are being changed
Dependant variable
is the variable that changes as a result of the independant variable. ie the one that is measured.
pictured: the height the soft drink reaches after the menthos has been added.
what is a Fair test and what questions should be considered to meet a fair test.
A fair test is an experiement that we can use to make the right decisions.
Questions that you should ask.
- did we control every variable
- did we estimate any measurements
- was there a variable that couldn’t be controlled
what is a reliable experiment
one that is repeatable and you get the same results.
experimental observations
the use of all your senses to record what has happened during an experiment, this includes sight, hearing, taste, smell and touch
Observation can be bothe qualtative or quantative. what is the difference
qualtative - use words to describe observations such as colour, sour, hot, cold are all qualtative descriptions.
quantative - use measurement or numbers (amounts) 34 m or 25 degress are quantative observations.
what are units
measurements are usually followed by units, metres, seconds, kiolograms are all units
- distance is measure in metres (m)
- time is measure in seconds (s)
- mass is mesaured in kilograms (kg)
What part of a scientific report is the discussion?
is your opportunity to discuss the findings of your experiment including
- any problems that occured
- any uggestions for improvements
Equipment (same as materials)
A list of items that you used in an experiement
Why are Fair Tests important
A fair test ensures experimental results can be used.
Hypothesis
is your initial theory or prediction about the outcome of the experiment.
meniscus
when measuring take your reading from the bottom of the meniscus
The shape liquid makes in a measuring cylinder.
parallax error
When measuring, looking from the side or above can produce errors and are called parallax errors
pseudoscience
Unscientific information that sounds like Science
has no experimental evidence to back up claims
Scientific Diagram
cuttingtheequipmentinhalf
Simple diagrams that show scientific equipment.
drawlikeyouare
Name an Australian Scientist and what they study.
Michelle Simmons
- She is a Quantum Phyicist
- She is developing a computor that runs at the level of an atom
Name the following Scientific equipment
* Bunsen burner
* Retort Stand
* evaporating basin
* Test tube
When drawing graphs
- label each axis with a heading and units
- include aheading with your graph
- make sure both axis scales are linear
- use x’s to mark the points
- use a ruler to join the X’s
